People who have only recently grasped the difference between an adverb and an adjective may find some words confusing, because although looking like adverbs (ending -ly) they are adjectives. There are three ways to respond to this confusion:
1) celebrate the difference, and use these words as often as possible, however obscure they may be
2) replace the words with a less confusing option: some people avoid words like 'lonely' and say 'lonesome' instead ( I suspect 'lonesome' is more common in AmE than it is here)
3) let such words fall into disuse:
comely,
shapely,
poorly (the adjective),
curmudgeonly are, I'd guess, less common now than they were a few generations ago; some only survive because of a fossilized collocation - such as 'comely wench' (well-endowed young woman)
This leaves a few words that are still common:
lovely and
leisurely spring to mind.
b
Re: adverb vs. adjective 
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